org 07c00h
mov ax,cs
mov ds,ax
mov es,ax
call DispStr
jmp $
DispStr:
mov ax, BootMessage
mov bp, ax
mov cx,16
mov ax, 01301h
mov bx, 000ch
mov dl, 0
int 10h
ret
BootMessage: db "Hello, OS world!"
times 510-($-$$) db 0

dw 0xaa55

